This study evaluates the techno-economic feasibility of integrating fuel cells into stand-alone power generation systems, combined with different technologies such as diesel generators, wind turbines, and batteries. An optimisation analysis was performed using Hybrid Optimization Model for Multiple Energy Resources (HOMER) software to minimise energy costs several system architectures were obtained operating scenarios. The performance cash flow selected included. results suggest that...

In this work, a model of proton exchange membrane fuel cell (PEMFC) is presented. A dynamic performance characterization performed to assess the transient response input variables. The used in simulation considers three different phenomena: mass transfer, thermodynamics, and electrochemistry. main sources voltage loss are presented: activation, electrical resistance, concentration. constructed avoid use fitted parameters, reducing experimentation required for its validation. Hence,...

Polymer nanocomposites have found wide acceptance in research applications as pressure sensors under the designation of force-sensing resistors (FSRs). However, given random dispersion conductive nanoparticles polymer matrix, sensitivity FSRs notably differs from one specimen to another; this condition has precluded use industrial that require large part-to-part repeatability. Six Sigma methodology provides a standard framework reduce process variability regarding critical variable. The core...

Computational Fluid Dynamics (CFD) models allows the three-dimensional simulation of complex electrochemical, fluid dynamics, and thermodynamic phenomena related to temperature pressure distribution in channels porous media than occurs inside fuel. This work presents a CFD Multiphysics PEM Fuel Cell under different operational conditions their inlet streams. The was done by using COMSOL Multiphysics® software, it takes into account mass transfer gases channels, electrochemistry from...

This paper presents, an open cathode fuel cell dynamic model and advanced control system design that allows to study the transient response of its nonlinearities. The can be used strategies test benches cells stacks. A performance characterization is performed (transient disturbances or setpoint changes), information propose structure a capable incorporating expert transition in non-linear regions. simulation takes account three different phenomena: (a) mass transfer, (b) thermodynamics (c)...

U.S. Department of Energy affirms that HVAC systems consume approximately 40% the total energy used in commercial-building sector. These types are complex because they composed a large number interconnected subsystems. The analysis shown this paper is established on building geographically located at Caribbean coast region Colombia with tropical savanna climate and it exposed to constant thermal load changes associated high wall temperatures direct sunlight incidence. Under perspective, an...

Renewable energy sources demands sustainable storage technologies through the incorporation of low-cost and environment-friendly materials. In this regard, cellulose nanocrystals (CN), which are needle-shaped nanostructure derived from cellulose-rich resources, extracted by sulfuric acid hydrolysis biomass used as both template binder for construction electrochemical capacitors electrodes. A composite material is synthetized comprising CN a conjugated electroactive polymer (CEP) to overcome...

Abstract Fuel cell system manufacturing process is not a defect-free process, therefore, the impact of typical defects in electrodes (i.e. Gas Diffusion Layer (GDL)) surface has to be taken into consideration when fuel being designed. To assess defect on performance, two approaches were consideration. Initially, was simulated using unidimensional (1D) dynamic model which took mass transfer, heat and electrochemical phenomena. The second approach experimental, 5 sq.cm PEM cell, GDL porosity...